Indeed it is a challenge to adapt the rigid body parameters here. On the side of the granular solver we have here a block of heavy snow or mud (kept in place by invisible frame around it) with cohesion. Without cohesion it would be sand. We see here that the rigid body is not loosing energy fast enough. Instead it is "digging" its way inside the granular material, although it obviously reacts to the particles. I will do another test with less or more interaction of the Dyverso particles with the Rigid body.